can coin
Regular verb: coin - coined- coined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can coin
you can coin
he can coin
we can coin
you can coin
they can coin 	I can be coining
you can be coining
he can be coining
we can be coining
you can be coining
they can be coining	I can have coined
you can have coined
he can have coined
we can have coined
you can have coined
they can have coined	I can have been coining
you can have been coining
he can have been coining
we can have been coining
you can have been coining
they can have been coining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot coin
you cannot coin
he cannot coin
we cannot coin
you cannot coin
they cannot coin 	I cannot be coining
you cannot be coining
he cannot be coining
we cannot be coining
you cannot be coining
they cannot be coining	I cannot have coined
you cannot have coined
he cannot have coined
we cannot have coined
you cannot have coined
they cannot have coined	I cannot have been coining
you cannot have been coining
he cannot have been coining
we cannot have been coining
you cannot have been coining
they cannot have been coining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I coin?
can you coin?
can he coin?
can we coin?
can you coin?
can they coin? 	can I be coining?
can you be coining?
can he be coining?
can we be coining?
can you be coining?
can they be coining? 	can I have coined?
can you have coined?
can he have coined?
can we have coined?
can you have coined?
can they have coined? 	can I have been coining?
can you have been coining?
can he have been coining?
can we have been coining?
can you have been coining?
can they have been coining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not coin?
can you not coin?
can he not coin?
can we not coin?
can you not coin?
can they not coin? 	can I not be coining?
can you not be coining?
can he not be coining?
can we not be coining?
can you not be coining?
can they not be coining? 	can I not have coined?
can you not have coined?
can he not have coined?
can we not have coined?
can you not have coined?
can they not have coined? 	can I not have been coining?
can you not have been coining?
can he not have been coining?
can we not have been coining?
can you not have been coining?
can they not have been coining?